Improvement in glass lamps



J. s; & T. B. ATTERBURY.

Glass Lamp.

No. 109,369. Patented, Nov. 22, 1870;

NPETERS. PHOTO-LITNOGRAPNER. WASHINGTON. DC.

UNITED STATES JAMES S. ATTERBURY AND THOMAS IMPROVEMENT PATENT OFFICE.

N GLASS LAM PS.

Specification forming part of Letters Patent No. 109,369, dated November 22, 1870.

To all whom it may concern Be it known that we, JAMES S. ATTERBURY and THOMAS B. ATTERBURY, of Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Lamps; and we do hereby de-. clare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, making part of this specification, in Which Figure l is a side view of the improved lamp-bowl. Fig. 2 is a diametrical section through the lamp-bowl.

Similar letters of reference indicate corresponding parts in both figures.

This invention consists in so constructing a lamp-bowl that that portion of it by which it is attached to a bracket, foot-stand, or other support shall be brought nearer to the center of the body of the bowl, thus affording a safer and in all respects a better support for the bowl than hitherto, as will be hereinafter explained.

The following description will enable others skilled in the art to understand our in vention.

In the accompanying drawings, A represents the globe or bowl of a lamp, having a concavity, a, formed in its bottom, in the center of which is a peg, B, which may be formed with a screw-thread on it to receive a metallic socket, B, by which the bowl is secured to a bracket, 0, or other suitable support. The screw-connection is preferable, although we do not confine ourselves thereto, as the peg may be made with a smooth surface, to be attached to a bracket, foot-stand, or other suitable support by means of cement.

It will be seen, by reference to Fig. 2, that the peg B does not extend below, nor is it exposed beyond the bottom of, the bowl; also, that this peg is entirely within a cavity which is formed into the bottom of the bowl, in such manner that the peg is brought nearer to the center of the body of the bowl than is the case with lamp-bowls hitherto made.

Believing ourselves to be the first to have constructed lamp-bowls, as well as other an ticles of vitreous ware, with pegs applied into recesses formed into their bottoms, we do not confine our invention to a lamp-bowl.

What we claim as new, and desire to secure by Letters Patent, is

The new manufactureviz., glass or other vitreous hollow articles with an attaching-peg, 13, around which is a recess, a, formed by depressing the bottom of the article, as shown.

JAMES S. ATTERBURY. THOMAS B. ATTERBURY. WVitnesses:

E. G. KNEHAN, S. PREAGER. 

